Tafsir of Surah Al-Baqara 2:233
﴿وَالْوَالِدَاتُ يُرْضِعْنَ أَوْلَادَهُنَّ حَوْلَيْنِ كَامِلَيْنِ لِمَنْ أَرَادَ أَن يُتِمَّ الرَّضَاعَةَ وَعَلَى الْمَوْلُودِ لَهُ رِزْقُهُنَّ وَكِسْوَتُهُنَّ بِالْمَعْرُوفِ لَا تُكَلَّفُ نَفْسٌ إِلَّا وُسْعَهَا لَا تُضَارَّ وَالِدَةٌ بِوَلَدِهَا وَلَا مَوْلُودٌ لَّهُ بِوَلَدِهِ وَعَلَى الْوَارِثِ مِثْلُ ذَٰلِكَ فَإِنْ أَرَادَا فِصَالًا عَن تَرَاضٍ مِّنْهُمَا وَتَشَاوُرٍ فَلَا جُنَاحَ عَلَيْهِمَا وَإِنْ أَرَدتُّمْ أَن تَسْتَرْضِعُوا أَوْلَادَكُمْ فَلَا جُنَاحَ عَلَيْكُمْ إِذَا سَلَّمْتُم مَّا آتَيْتُم بِالْمَعْرُوفِ وَاتَّقُوا اللَّهَ وَاعْلَمُوا أَنَّ اللَّهَ بِمَا تَعْمَلُونَ بَصِيرٌ﴾
Translation of the meaning
Mothers may nurse [i.e., breastfeed] their children two complete years for whoever wishes to complete the nursing [period]. Upon the father is their [i.e., the mothers'] provision and their clothing according to what is acceptable. No person is charged with more than his capacity. No mother should be harmed through her child, and no father through his child. And upon the [father's] heir is [a duty] like that [of the father]. And if they both desire weaning through mutual consent from both of them and consultation, there is no blame upon either of them. And if you wish to have your children nursed by a substitute, there is no blame upon you as long as you give payment according to what is acceptable. And fear Allāh and know that Allāh is Seeing of what you do.
English Translation - Noor International Center — v1.1.2 · QuranEnc.comThe words of the two imams are given in their original Arabic, verbatim, with references.
Shaykh al-Islam Ibn Taymiyyah
ومن هذا قوله سبحانه: {والوالدات يرضعن أولادهن} أي كل والدة ترضع ولدها؛«مجموع الفتاوى» 31/128Imam Ibn al-Qayyim
What he quoted from others
ابن عباس أقرّه «أن المرأة قد تلد لستة أشهر»«إعلام الموقعين عن رب العالمين» 1/265أصحاب الحولين حكاه «فجعل تمام الرضاعة حولين، فدل على أنه لا حكم لما بعدهما، فلا يتعلق به التحريم.»«زاد المعاد في هدي خير العباد» 5/515